package com.itheima.servlet;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Enumeration;

public class ServletDemo1 extends HttpServlet {
    private ServletConfig config;

    @Override
    public void init(ServletConfig config) throws ServletException {
        this.config= config;



    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//        config = getServletConfig();



        String enconding = config.getInitParameter("enconding");
        System.out.println(enconding);

        Enumeration<String> keys = config.getInitParameterNames();

        while (keys.hasMoreElements()) {
            String key = keys.nextElement();

            String value = config.getInitParameter(key);
            System.out.println(key+","+value);
        }

        String servletName = config.getServletName();
        System.out.println(servletName);

        ServletContext servletContext = config.getServletContext();
        System.out.println(servletContext);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req,resp);
    }
}
